CVE-2026-3805

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Source
https://cve.org/CVERecord?id=CVE-2026-3805
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-3805.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-3805
Aliases
Downstream
Related
Published
2026-03-11T10:09:37.729Z
Modified
2026-07-11T03:53:23.024329418Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
use after free in SMB connection reuse
Details

When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3805.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "8.18.0"
                },
                {
                    "last_affected": "8.18.0"
                },
                {
                    "introduced": "8.17.0"
                },
                {
                    "last_affected": "8.17.0"
                },
                {
                    "introduced": "8.16.0"
                },
                {
                    "last_affected": "8.16.0"
                },
                {
                    "introduced": "8.15.0"
                },
                {
                    "last_affected": "8.15.0"
                },
                {
                    "introduced": "8.14.1"
                },
                {
                    "last_affected": "8.14.1"
                },
                {
                    "introduced": "8.14.0"
                },
                {
                    "last_affected": "8.14.0"
                },
                {
                    "introduced": "8.13.0"
                },
                {
                    "last_affected": "8.13.0"
                }
            ]
        }
    ],
    "cna_assigner": "curl"
}
References

Affected packages

Git / github.com/curl/curl

Affected ranges

Type
GIT
Repo
https://github.com/curl/curl
Events
Introduced
1c3149881769e7bd79b072e48374e4c2b3678b2f
Fixed
8c908d2d0a6d32abdedda2c52e90bd56ec76c24d
Database specific 
{
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "8.13.0"
        },
        {
            "fixed": "8.19.0"
        }
    ],
    "cpe": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*"
}

Affected versions

Other
curl-8_13_0
curl-8_14_0
curl-8_14_1
curl-8_15_0
curl-8_16_0
curl-8_17_0
curl-8_18_0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-3805.json"